package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();


        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());

//        log.info("员工。{}",password);
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }
    //新增员工
    @Override
    public void add(EmployeeDTO employeeDTO) {
        log.info("EmployeeServiceImpl 新增员工");
        //创建一个 employee实体类，用来保存数据
        Employee employee = new Employee();


        //复制属性
        BeanUtils.copyProperties(employeeDTO,employee);
        
        //补充未添加的数据，创建时间等
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        employee.setCreateUser(1l);
        employee.setUpdateUser(1l);

        employee.setStatus(StatusConstant.ENABLE);
        //密码加密   初始密码123456-->md5
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        //插入
        employeeMapper.add(employee);


//        Employee employee = new Employee();
//        //对象属性拷贝
//        BeanUtils.copyProperties(employeeDTO,employee);
//        //设置账号的状态 默认正常态度 1 正常 0 锁定
//        employee.setStatus(StatusConstant.ENABLE);
//        //设置密码，默认123456
//        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
//
//        //设置当前修改和创建时间
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//
//        //设置当前记录的创建人id 和修改人id
//        employee.setCreateUser(BaseContext.getCurrentId());
//        employee.setUpdateUser(BaseContext.getCurrentId());
//
//        employeeMapper.add(employee);
    }

    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        //select
        //开始分页查询
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
//处理name 空格
        if (employeePageQueryDTO.getName()!=null){
            employeePageQueryDTO.setName(employeePageQueryDTO.getName().trim());
        }
        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

        long total  = page.getTotal();
        List<Employee> result = page.getResult();

        return new PageResult(total,result);
    }

    @Override
    public void startOrStop(Integer status, Long id) {
         Employee employee = Employee.builder()
                 .status(status)
                 .id(id)
                 .build();

         employeeMapper.update(employee);
    }

    //修改 根据id 查询员工
    @Override
    public Employee getId(Long id) {
        Employee employee  = employeeMapper.getId(id);
        return employee;
    }

    //编辑
    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);

        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.update(employee);
    }

}
